Control box of metal detector



FIG. 1 is a front and top perspective view of a control box of metal detector, showing my new design;

FIG. 2 is a rear and bottom perspective view thereof;

FIG. 3 is a front elevation view thereof;

FIG. 4 is a rear elevation view thereof;

FIG. 5 is a left side elevation view thereof;

FIG. 6 is a right side elevation view thereof;

FIG. 7 is a top plan view thereof; and,

FIG. 8 is a bottom plan view thereof.

The broken lines in the figures illustrate portions of the control box of metal detector that form no part of the claimed design. 

CLAIM The ornamental design for a control box of metal detector, as shown and described. 